---
title: addBuffer
framework: kernel
role: pseudoSymbol
path: kernel/iostream/1809807-addbuffer
---

# addBuffer

Add a buffer to an IOStream.

## Declaration

```occ
virtual IOReturn addBuffer(
 IOStreamBuffer *buffer); 
```

## Parameters

- `buffer`:

## Overview

Overview Adds an IOStreamBuffer to an IOStream. It will be added to the end of the buffer array, so the buffer ID of existing buffers will not change.

## See Also

### Managing buffers in an IOStream

- [addBuffers](kernel/iostream/1809814-addbuffers.md)
- [getBufferCount](kernel/iostream/1809821-getbuffercount.md)
- [getBuffers](kernel/iostream/1809828-getbuffers.md)
- [getBufferWithID](kernel/iostream/1809834-getbufferwithid.md)
- [removeAllBuffers()](kernel/iostream/1809839-removeallbuffers.md)
- [removeAllBuffers()](kernel/iostream/1809846-removeallbuffers.md)
- [removeBuffer(IOStreamBuffer *)](kernel/iostream/1809852-removebuffer.md)
- [removeBuffer(IOStreamBufferID)](kernel/iostream/1809860-removebuffer.md)